Mazda CX-9 Grand Touring 2007 Manual page 797

2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Visually inspect for fuel leakage in
the fuel system.
Is there fuel leakage?
13 VERIFY TROUBLESHOOTING OF
DTC P2195, P2197 HAS BEEN
COMPLETED
Verify that all disconnected
connectors are reconnected.
Turn the ignition switch to the ON
position (Engine off).
Clear the DTC from the PCM
memory using the M-MDS.
Perform no load racing at the
engine speed of 2,500-3,500 rpm
for 60s or more, then idle the
engine for 60s or more.
Perform the KOEO and KOER
self-test.
Retrieve DTCs using the M-MDS.
Is the PENDING CODE for this
DTC present?
14 VERIFY AFTER REPAIR
PROCEDURE
Perform "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR
PROCEDURE [MZI-3.5].)
Are any DTC present?
DTC P2196, P2198 [MZI-3.5]
DTC P2196, P2198 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
DTC P2196 P2196: Front HO2S (RH) signal stuck rich
DTC P2198 P2198: Front HO2S (LH) signal stuck rich
DETECTION
CONDITION
2007 Mazda CX-9 Grand Touring
A HO2S indicating rich at the end of a test is trying to correct for an over-
rich condition. The test fails when the fuel control system no longer detects
switching for a calibrated amount of time
No Replace the fuel pump unit, then go to the
next step.
(see FUEL PUMP UNIT
REMOVAL/INSTALLATION [MZI-
3.5] .)
Yes Replace the PCM, then go to the next step.
(see PCM
REMOVAL/INSTALLATION [MZI-
3.5] .)
No Go to the next step.
Yes Go to the applicable DTC inspection.
(See DTC TABLE [MZI-3.5].)
No Troubleshooting completed.